/* 音频控制按钮样式 */
.audio-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #4CAF50;
    color: white;
    border: none;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 10px;
}

.audio-btn:hover {
    background-color: #3d8b40;
    transform: scale(1.1);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.audio-btn.small {
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
}

.audio-btn.large {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
}

.audio-control-container {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* 音频播放状态动画 */
.audio-playing {
    position: relative;
}

.audio-playing::after {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 12px;
    height: 12px;
    background-color: #FF5722;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.7);
    }
    
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(255, 87, 34, 0);
    }
    
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 87, 34, 0);
    }
} 